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This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.

List of results

• 05000397/LER-1983-002-03, /03L-0:on 831231,discovered Fire Protection Storage Water Level in FP-TK-100 Less than 280,000 Gallons. Caused by Air Binding of Filter Effluent Pump While FP-P-107 in Manual Mode Due to Inadequate Procedural Instructions  + (10:51:33, 26 May 2025)
• 05000317/LER-1983-091-01, ECCS Pump Room Exhaust Ventilation Sys Charcoal Filter Inlet Damper Would Not Open When Bypass Damper Shut.Caused by Incorrect Connection of Charcoal Filter Damper Actuators  + (10:51:35, 26 May 2025)
• 05000325/LER-1983-044-03, High Water Generator Set Fluid Drive Temp Tripped Reactor Recirculation Pump Set 1B.Caused by Temp Control Valve TCC-TV-608 Breaking Valve Pin Travel Arm.Arm Replaced  + (10:51:36, 26 May 2025)
• 05000289/LER-1983-041-99, /99X-0:on 831025,while in Cold Shutdown,Cracking Observed on Molded Rubber Seat Ring of Containment Purge Isolation Valve AH-V1B.Caused by Insufficient Adhesion Between Plies of Seat Matl  + (10:51:39, 26 May 2025)
• 05000370/LER-1983-091-03, /03L-0:on 831224,while in Mode 4,invalid Fire Alarm Received.Caused by Dust Accumulation in Detector Due to Maint Activities.Detector Replaced  + (10:51:41, 26 May 2025)
• 05000416/LER-1983-193-03, /03L-0:on 831227,outboard Suction Valve Closed During Instrument Surveillance.Caused by Tip Breaking Off mini-test Clip.Surveillances Reviewed for Points Requiring Test Connections & Banana Jacks Installed  + (10:51:42, 26 May 2025)
• 05000318/LER-1983-077-03, /03L-0:on 831221,during Normal Operation,Leak Discovered in Charging Header Drain Line.Caused by Failure of 3/4-inch Socket Weld Due to Line Vibration & Lack of Restraint.Restraint Installed  + (10:51:44, 26 May 2025)
• 05000272/LER-1983-070-03, /03L-0:on 831221,exterior Door of 100-ft Elevation Airlock Exhibited Excessive Leakage During Surveillance Testing.Caused by Cut Exterior Door Outer Seal. Seal Replaced  + (10:51:46, 26 May 2025)
• 05000311/LER-1983-066-03, /03L-0:on 831220,common Suction Valve 2RH1 Closed, Resulting in Loss of RHR Flow.Caused by Personnel Error.Rhr Pump 22 Started & RHR Flow Reestablished within 22 Minutes  + (10:51:50, 26 May 2025)
• ML20079S398  + (10:51:51, 26 May 2025)
• TAC:51556  + (10:54:20, 26 May 2025)
• ML20079R099  + (10:55:20, 26 May 2025)
• TAC:M75910  + (10:55:31, 26 May 2025)
• 05000373/LER-1983-033-03, Radwaste Effluent Monitor Declared Inoperable.Caused by High Fixed Level of Background Radiation.Inner Chamber Surface Experimentally Coated W/ Acrylic Resin  + (10:55:36, 26 May 2025)
• ML20079Q439  + (10:55:55, 26 May 2025)
• ML20079P157  + (10:58:33, 26 May 2025)
• ML20079P154  + (10:58:34, 26 May 2025)
• 05000296/LER-1983-006-03, /03L-0:on 830128,during Shutdown,While Performing Monthly Vibration Tests on 480-volt Reactor Motor Operated Valve Motor Generator Sets,High Vibration Readings Detected. Caused by Leak in Seal Ring.Coupling & Rings Replaced  + (10:59:49, 26 May 2025)
• 05000296/LER-1983-007-03, /03L-0:on 830128,during Monthly Vibration Checks, Generator/Flywheel Ball Bearing Developed High Vibration Levels.Cause Suspected to Be Normal Wear.Bearing Replaced  + (10:59:50, 26 May 2025)
• 05000416/LER-1983-112-03, While Troubleshooting Nssss/Eccs Initiation Circuitry Re Improper Operation of E12F087B & F025B,partial LOCA Occurred.Caused by Error in Work Order.Changes Underway  + (11:00:12, 26 May 2025)
• ML20079N533  + (11:00:20, 26 May 2025)
• 05000416/LER-1983-111-03, Amphenol Type Signal Cable Connector in Control Room Panel Disconnected.Caused by Personnel Error.Changes to Administrative Controls Governing Maint Activites Implemented  + (11:01:15, 26 May 2025)
• TAC:08602  + (11:01:18, 26 May 2025)
• ML20079M680  + (11:02:53, 26 May 2025)
• 05000272/LER-1983-003-04, /04L-0:on 830121,during Commencement of Refueling Shutdown for Unit 2,Unit 1 Restart Delayed Approx 7 Wks. Caused by Problems W/Steam Generator Nozzle Dams & Degradation of Welds in Svc Water Piping  + (11:03:02, 26 May 2025)

• 05000237/LER-1983-082-03, /03L-0:on 831225,while Performing Weekly & Daily Turbine Checks During Normal Operation,Control Valve 4 Failed to Give half-scram When Tested.Probably Caused by Failed Test Switch CVTS-4.Recorder Installed  + (11:03:08, 26 May 2025)

• A830000, Responds to NRC Re Violations Noted in IE Insp Rept 50-298/82-33.Corrective Actions:Personnel Instructed on Correct Method of Completing Procedure Npe 10.1 Data Sheet & on Use of Process Computer  + (11:03:16, 26 May 2025)
• 05000369/LER-1983-002-03, /03L-0:on 830110,while in Mode 1,pressurizer Heater Group 1B Failed to Energize in Manual & Declared Inoperable.Cause Under Investigation.Design Defect Indicated in Vacuum Breaker Contractor Coil Circuit  + (11:03:59, 26 May 2025)
• ML20079M063  + (11:04:27, 26 May 2025)
• 05000346/LER-1983-002-03, /03L-0:on 830114 & 15,after Reactor Trips,Rcs Dose Equivalent I-131 Exceeded Tech Spec Limit.Caused by Slight Leakage of Fission Products Through Fuel Cladding.Caused by Temp & Pressure Changes.Situation Monitored  + (11:04:34, 26 May 2025)
• 05000346/LER-1983-002, Forwards LER 83-002/03L-0  + (11:04:39, 26 May 2025)
• 05000458/LER-1991-003, :on 910322,damper Isolations & Automatic Swap of Divisional Control Bldg Ventilation/Chiller Occurred Due to Inadequate Work Plan.Work Plan Revised to Document Removal & Restoration of Hot & Neutral Wiring  + (11:04:51, 26 May 2025)
• ML20079L951  + (11:04:55, 26 May 2025)
• ML20079L783  + (11:05:18, 26 May 2025)
• ML20079L466  + (11:05:52, 26 May 2025)
• 05000389/LER-1983-077-03, /03L-0:on 831221,diesel Generator 2B Failed to Start within 10 & Fuel Oil Day Tank Failed to Automatically Fill Above 30% Level.Cause for Slow Start Not Determined.Tank Holding Relay Module Replaced  + (11:06:07, 26 May 2025)
• 05000338/LER-1983-006-03, /03L-0:on 830125,triaxial Peak Accelegraphs on RHR HX & Safety Injection Pipe Found Inoperable from Corrosion Damage on Internal Parts.Caused by Moisture Entering Accelegraphs.Units Replaced  + (11:06:09, 26 May 2025)
• 05000361/LER-1991-015-01, :on 911001,containment Purge Isolation Sys Train a Actuation Occurred While Performing Radiography. Cause Not Stated.Health Physics Procedures Modified & Training Will Be Conducted  + (11:06:12, 26 May 2025)
• ML20079L372  + (11:06:17, 26 May 2025)
• 05000373/LER-1991-011-05, :on 911002,TS Surveillance Missed During Primary Containment Due to Missed Prerequisite C.6 in Procedure LOP-VQ-11.Procedure LOP-VQ-11 Will Be Revised & Operating Dept Will Be Trained on Event  + (11:06:19, 26 May 2025)
• 05000395/LER-1983-076-03, Pressurizer PORV PCV-444B-RC Would Not Fully Stroke When Operated from Main Control Board.Caused by Low Operating Pressure.Regulator for PCV-44B-RC Replaced  + (11:06:21, 26 May 2025)
• 05000366/LER-1980-049-03, While Performing Standby Liquid Control Pump Operability & Relief Valve Test,Sblc Pump B Discharge Relief Valve Failed to Operate at Required Pressure.Caused by Setpoint Drift  + (11:06:24, 26 May 2025)
• 05000259/LER-1983-073-01, /01T-0:on 831231,reactor Coolant Sample Indicated Chloride Concentration of 525 Ppb & Conductivity & Offgas Radiation Level Increased While Ph Decreased.Caused by Resin Intrusion Into Reactor Vessel.Trap Replaced  + (11:06:27, 26 May 2025)
• 05000361/LER-1983-154-03, /03L-0:on 831211,during Mode 5 Outage,Channel a Pressurizer Level Transmitter 2LT-0110-1 Found Inoperable During Performance of 18-month Calibr.Caused by Empty Ref Leg.Leg Filled  + (11:06:28, 26 May 2025)
• 05000397/LER-1983-001-03, /03L-0:on 831225,while Loading First Fuel Bundle, Rod Block Protective Interlock Lost.Caused by Misinterpretation of Tech Spec Intent.Calibr & Survillance Procedures Changed  + (11:06:32, 26 May 2025)
• ML20079L344  + (11:06:34, 26 May 2025)
• 05000327/LER-1983-010-03, /03L-0:on 830118,during Performance of Surveillance Instruction 7,diesel Generator 1A-A Tripped on High Water Jacket Temp.Caused by ERCW Valve 1-FCV-67-66 Failing to Open.No Cause Found  + (11:06:37, 26 May 2025)
• 05000366/LER-1980-049, Forwards Updated LER 80-049/03X-1  + (11:06:39, 26 May 2025)
• 05000321/LER-1983-010-03, /03L-0:on 830110,during Reactor Coolant Instrumentation Lines Excess Flow Check Valve Operability review,12 Valves Found Inoperable.Caused by Electrical & Mechanical Component Failures.Valves Repaired/Replaced  + (11:06:43, 26 May 2025)
• 05000280/LER-1982-129-03, /03L-0:on 821202,performance of Periodic Test 27 Revealed Amp Reading for Panel 1,circuit 23A Not within Acceptance Criteria.Caused by Faulty Thermostat.Thermostat Replaced  + (11:06:49, 26 May 2025)
• 05000362/LER-1991-004-02, :on 910930,discovered That TS Surveillance Required to Be Performed Once Per 24-h Exceeded Surveillance Interval by 40 Minutes.Caused by Control Room Personnel. Appropriate Disciplinary Action Administered  + (11:06:58, 26 May 2025)